Summer Squash Pound Cake

Ingredients

• 1/2 cup butter, softened, plus more, to taste, for greasing the pan
• 2 1/2 cups all-purpose flour, plus more, to taste, for dusting the pan
• 1 1/4 cups sugar
• 2 large eggs, room temperature
• 1 teaspoon lemon juice
• 1/4 teaspoon almond extract, optional
• 1 1/2 teaspoons baking powder
• 1/4 teaspoon baking soda
• 1/4 teaspoon salt
• 1/2 cup sour cream or plain Greek yogurt
• 2 cups yellow summer squash, shredded or grated
• 3/4 cup confectioners' sugar
• 2 teaspoons water, plus more, to taste
• 1 1/2 teaspoons lemon juice